process.hrtime([time]) do not return diffs while time is given

[legendecas]

time is an optional parameter that must be the result of a previous process.hrtime() call to diff with the current time.

demo script:

var NS_PER_SEC = 1e9;
var time = process.hrtime();
// [ 16264, 282919475 ]

setTimeout(() => {
  var diff = process.hrtime(time);
  // expecting [ 1, 2476940 ]
  // actual [ 16265, 285396415 ]

  console.log(`Benchmark took ${diff[0] * NS_PER_SEC + diff[1]} nanoseconds`);
}, 1000);